must plough
Verbe régulier : plough - ploughed- ploughed
Traduction française : (UK) labourer - labourer 

Affirmation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I must plough
you must plough
he must plough
we must plough
you must plough
they must plough 	I must be ploughing
you must be ploughing
he must be ploughing
we must be ploughing
you must be ploughing
they must be ploughing	I must have ploughed
you must have ploughed
he must have ploughed
we must have ploughed
you must have ploughed
they must have ploughed	I must have been ploughing
you must have been ploughing
he must have been ploughing
we must have been ploughing
you must have been ploughing
they must have been ploughing	

Négation 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
I mustn't plough
you mustn't plough
he mustn't plough
we mustn't plough
you mustn't plough
they mustn't plough 	I mustn't be ploughing
you mustn't be ploughing
he mustn't be ploughing
we mustn't be ploughing
you mustn't be ploughing
they mustn't be ploughing	I mustn't have ploughed
you mustn't have ploughed
he mustn't have ploughed
we mustn't have ploughed
you mustn't have ploughed
they mustn't have ploughed	I mustn't have been ploughing
you mustn't have been ploughing
he mustn't have been ploughing
we mustn't have been ploughing
you mustn't have been ploughing
they mustn't have been ploughing	

Forme interrogative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
must I plough?
must you plough?
must he plough?
must we plough?
must you plough?
must they plough? 	must I be ploughing?
must you be ploughing?
must he be ploughing?
must we be ploughing?
must you be ploughing?
must they be ploughing? 	must I have ploughed?
must you have ploughed?
must he have ploughed?
must we have ploughed?
must you have ploughed?
must they have ploughed? 	must I have been ploughing?
must you have been ploughing?
must he have been ploughing?
must we have been ploughing?
must you have been ploughing?
must they have been ploughing? 	

Forme interro-négative 	
Forme simple 	Forme en V-ing 	Perfect 	Perfect en V-ing 	
mustn't I plough?
mustn't you plough?
mustn't he plough?
mustn't we plough?
mustn't you plough?
mustn't they plough? 	mustn't I be ploughing?
mustn't you be ploughing?
mustn't he be ploughing?
mustn't we be ploughing?
mustn't you be ploughing?
mustn't they be ploughing? 	mustn't I have ploughed?
mustn't you have ploughed?
mustn't he have ploughed?
mustn't we have ploughed?
mustn't you have ploughed?
mustn't they have ploughed? 	mustn't I have been ploughing?
mustn't you have been ploughing?
mustn't he have been ploughing?
mustn't we have been ploughing?
mustn't you have been ploughing?
mustn't they have been ploughing?